A feeding device for a blow molding machine

Abstract

The application relates to the technical field of blow molding machines, in particular to a blow molding machine feeding device. The blow molding machine feeding device comprises a feeding hopper, a feeding inlet and a discharging port are arranged on the feeding hopper, a discharging plug plate is slidably arranged on the feeding hopper and used for closing the discharging port, a plug slot and a through slot are arranged on the inner wall of the feeding hopper, when the discharging plug plate is inserted into the plug slot, the discharging plug plate closes the discharging port, and the through slot is vertically arranged and communicates with the plug slot. The application can pass the plastic particles into the through slot, avoid the accumulation of the plastic particles in the plug slot, avoid the situation that the discharging plug plate cannot be moved to the designated position, and reduce the damage of the driving component of the discharging plug plate.

Description

Technical Field

[0001] This application relates to the field of blow molding machine technology, and in particular to a blow molding machine feeding device. Background Technology

[0002] Blow molding is one of the most important processing methods for hollow plastic products, widely used in beverage bottles, medicine bottles, daily chemical packaging barrels, and automotive air ducts. During blow molding, the blow molding machine needs to be fed with materials. Typically, to make plastic bottles, plastic particles are fed into the blow molding machine, and the plastic particles are processed to create the plastic bottle.

[0003] A utility model patent with publication number CN211441122U discloses a device for preventing material jamming in a blow molding machine. This device reduces the possibility of material getting stuck between the material feeding plate and the inner wall of the feeding port by inserting the feeding plate between the support part and the step part, and avoids material leakage caused by gaps between the feeding plate and the feeding port.

[0004] However, when the feeding plate is inserted between the step and the support, it is easy to push plastic particles into it. When too many plastic particles accumulate between the step and the support, it can affect the normal operation of the feeding plate and cause damage to the equipment. Utility Model Content

[0005] The purpose of this application is to provide a feeding device for a blow molding machine that can reduce damage to the equipment.

[0006] The present application provides a feeding device for a blow molding machine, which adopts the following technical solution: A feeding device for a blow molding machine, comprising: A feeding hopper, wherein the feeding hopper is provided with a feeding inlet and a discharging outlet; A discharge plate is slidably disposed on the feeding hopper and is used to close the discharge port; The inner wall of the feeding hopper is provided with a slot and a through groove. When the feeding plate is inserted into the slot, the feeding plate closes the feeding port. The through groove is connected to the slot and is vertically opened.

[0007] Optionally, a collection box is also included, which is fixed to the feeding hopper and communicates with the through trough, and is used to collect plastic particles falling from the through trough.

[0008] Optionally, the collection box has an opening at the bottom, and a cover plate for closing or opening the collection box is provided at the bottom of the collection box, and the cover plate is rotatably mounted on the collection box.

[0009] Optionally, the collection box is provided with a torsion spring, one end of which acts on the collection box and the other end of which acts on the cover plate. The torsion spring is used to drive the cover plate to rotate toward the collection box.

[0010] Optionally, a cover opening component is also included, which is disposed on the feeding hopper and used to drive the cover plate to open the collection box.

[0011] Optionally, the cover opening component is a spring sheet, one end of which is fixed to the inner wall of the through groove and the other end abuts against the cover plate. The feeding insert can be inserted into the through groove and push the spring sheet to undergo elastic deformation.

[0012] This application, by setting a through groove, allows plastic particles located in the slot to be pushed into the through groove through the feeding plate, avoiding the accumulation of plastic particles in the slot and reducing the possibility of the feeding plate being unable to move to the designated position due to the accumulation of plastic particles, thereby causing damage to the driving components of the feeding plate.

[0013] Furthermore, the collection box is designed to collect plastic particles that fall into the channel, preventing them from falling directly into the blow molding machine and causing inaccurate feeding.

[0014] This application also incorporates a spring clip, which allows the cover plate to rotate as the feeding plate moves, thus feeding plastic particles from the collection box into the blow molding machine. Since the spring clip is driven by the feeding plate, the structure of the feeding device is simplified, making it easier to use and reducing the possibility of damage. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a blow molding machine feeding device according to an embodiment of this application.

[0016] Figure 2 This is a cross-sectional structural schematic diagram of a blow molding machine feeding device according to an embodiment of this application.

[0017] Figure 3 yes Figure 2 A magnified view of part A in the diagram.

[0018] In the diagram, 1 is the feeding hopper; 11 is the feed inlet; 12 is the discharge outlet; 13 is the slot; 14 is the through groove; 15 is the slide groove; 2 is the discharge plate; 3 is the collection box; 4 is the cover plate; 5 is the cover opening component; and 6 is the drive component. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1 -Appendix Figure 3 This application will be described in further detail below.

[0020] A feeding device for a blow molding machine, as described in the following description. Figure 1 and Figure 2 The system consists of a feeding hopper 1 and a discharge plate 2. The feeding hopper 1 has a feed inlet 11 and a discharge outlet 12, with the discharge outlet 12 corresponding to the feeding position of the blow molding machine. The feed inlet is used to introduce plastic particles. The discharge plate 2 is slidably mounted on the feeding hopper 1 and is used to close the discharge outlet 12. Specifically, a groove 15 is provided on the side wall of the feeding hopper 1. One end of the discharge plate 2 is inserted into the feeding hopper 1 through the groove 15 to achieve a sliding connection between the discharge plate 2 and the feeding hopper 1. The discharge plate 2 slides until it abuts against the inner wall of the feeding hopper 1, thereby closing the discharge outlet 12. The discharge plate 2 is driven to slide by a driving component 6. In some embodiments, the discharge plate 2 can be driven by a motor or a lead screw, etc.

[0021] Reference Figure 2 and Figure 3 In some embodiments, a slot 13 is provided on the inner wall of the feeding hopper 1. The slot 13 is located on the inner wall of the feeding hopper 1 away from the slide 15, and the position of the slide 15 corresponds to the position of the slot 13. When the feeding plate 2 slides into the slide 15, it closes the feeding port 12. Because of the slot 13, even if there are some plastic particles between the side wall of the feeding plate 2 and the side wall of the feeding hopper 1, they will be pushed into the slot 13 and will not get stuck between the feeding plate 2 and the inner wall of the feeding hopper 1. This avoids the situation where gaps are formed between the feeding plate 2 and the inner wall of the feeding hopper 1 due to the presence of plastic particles, allowing plastic particles to pass through.

[0022] In some embodiments, a through groove 14 is also provided on the inner wall of the feeding hopper 1. The through groove 14 is connected to the slot 13 and is vertically oriented. When the feeding plate 2 pushes the plastic particles into the slot 13, the feeding plate 2 can continue to move until the side wall of the feeding plate 2 is flush with the inner side wall of the through groove 14 and then stops moving. At this time, the plastic particles in the slot 13 will fall into the through groove 14 under the push of the feeding plate 2, avoiding the accumulation of plastic particles in the slot 13, which would affect the movement of the feeding plate 2 to the designated position, thereby avoiding the impact on the driving component 6 of the feeding plate and reducing the possibility of equipment damage. The through groove 14 can be directly connected to the blow molding machine, allowing excess plastic particles to be directly fed into the blow molding machine; the through groove 14 can also be connected to a pipe, allowing excess plastic particles to be fed into a collector for collection.

[0023] In some embodiments, a blow molding machine feeding device further includes a collection box 3, which is fixed on the feeding hopper 1 and communicates with the through trough 14. Plastic particles can fall directly into the collection box 3 through the through trough 14 for collection, thus avoiding the situation where plastic particles are scattered all over the ground. In some embodiments, the collection box 3 has an opening at its lower end and is provided with a cover plate 4. The cover plate 4 is rotatably connected to the collection box 3 and is used to close or open the collection box 3. That is, when a certain amount of plastic particles are collected in the collection box 3, the plastic particles in the collection box 3 can be transferred out by rotating the cover plate 4 to avoid excessive accumulation of plastic particles in the collection box 3. In some embodiments, the opening at the lower end of the collection box 3 can be directly connected to the blow molding machine. When the cover plate 4 of the collection box 3 is opened, the plastic particles fall directly into the blow molding machine for feeding.

[0024] In some embodiments, a torsion spring (not shown in the figure) is provided on the collection box 3. One end of the torsion spring acts on the collection box 3, and the other end acts on the cover plate 4. Specifically, it can be fixed to the collection box 3 and the cover plate 4 respectively. The torsion spring is used to drive the cover plate to rotate towards the collection box 3. That is, when the cover plate 4 rotates away from the collection box 3, the torsion spring is in a torsional state; when the torsion spring returns to its original state, it drives the cover plate 4 to reset, and the cover plate 4 closes the lower end of the collection box 3. By providing a torsion spring, the collection box 3 can automatically close under the elastic force of the torsion spring, which is convenient to use and simplifies the operation process.

[0025] In some embodiments, the blow molding machine feeding device further includes a cover opening component 5, which drives the cover plate 4 to rotate to open the collection box 3. When it is necessary to transfer the plastic particles in the collection box 3, the cover plate 4 is opened by the cover opening component 5, allowing the plastic particles in the collection box 3 to fall out, thereby realizing the transfer of the plastic particles in the collection box 3. In other embodiments, the cover opening component 5 can be a motor, which drives the cover plate 4 to rotate.

[0026] In this embodiment, the opening component 5 is a spring sheet. One end of the spring sheet is fixed to the inner wall of the through groove 14, and the other end abuts against the cover plate 4. The feeding plate 2 corresponds to the position of the spring sheet. When it is necessary to transfer the plastic particles in the collection box 3, the feeding plate 2 can be moved closer to the position of the spring sheet. The feeding plate 2 pushes the spring sheet, causing the spring sheet to undergo elastic deformation. Since the upper end of the spring sheet is fixed, the end that abuts against the cover plate 4 extends downward, thereby pushing the cover plate 4 to open. At this time, the plastic particles will slide out of the collection box 3 under the action of gravity.

[0027] Specifically, one end of the spring is fixed to the uppermost end of the inner wall of the through groove 14, and the other end abuts against the end of the cover plate 4 away from the torsion spring. The spring protrudes towards the feeding plate 2. The feeding plate 2 pushes the spring to undergo elastic deformation, causing the spring to slowly change from a convex state to a flat state, thereby extending the spring and pushing the cover plate 4 to rotate, thus opening the collection box 3.

[0028] Since most of the plastic particles in slot 13 are pushed into slot 13 by the feeding plate 2 during the closing of the feeding port 12, that is, most of the plastic particles in slot 13 enter slot 13 after the blow molding machine has finished feeding. Therefore, if these plastic particles flow directly into the blow molding machine from the through groove 14, it is easy to cause the problem of inaccurate feeding.

[0029] The design of the collection box 3 prevents plastic particles from falling into the blow molding machine during the feeding process, thus avoiding inaccurate feeding. When it is necessary to transfer the plastic particles from the collection box 3, the feeding plate 2 is moved first, causing it to push the spring plate to allow the plastic particles from the collection box 3 to flow into the blow molding machine. Then, the feeding plate 2 opens the feeding port 12 for feeding. Since the plastic particles from the collection box 3 have already entered the blow molding machine, their weight is already included in the calculation. This allows for easy adjustment when feeding more plastic particles, preventing inaccurate feeding.

[0030] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A feeding device for a blow molding machine, characterized in that, include: The feeding hopper (1) is provided with a feed inlet (11) and a discharge outlet (12). The feeding plate (2) is slidably disposed on the feeding hopper (1) and is used to close the feeding port (12). The inner wall of the feeding hopper (1) is provided with a slot (13) and a through groove (14). When the feeding plate (2) is inserted into the slot (13), the feeding plate (2) closes the feeding port (12). The through groove (14) is connected to the slot (13) and is vertically opened.

2. The feeding device for a blow molding machine according to claim 1, characterized in that, It also includes a collection box (3), which is fixed on the feeding hopper (1) and communicates with the through groove (14). The collection box (3) is used to collect plastic particles falling from the through groove (14).

3. The feeding device for a blow molding machine according to claim 2, characterized in that, The collection box (3) has an opening at the lower end, and a cover plate (4) for closing or opening the collection box (3) is provided at the lower end of the collection box (3). The cover plate (4) is rotatably mounted on the collection box (3).

4. The feeding device for a blow molding machine according to claim 3, characterized in that, The collection box (3) is provided with a torsion spring. One end of the torsion spring acts on the collection box (3) and the other end acts on the cover plate (4). The torsion spring is used to drive the cover plate to rotate towards the collection box (3).

5. A blow molding machine feeding device according to claim 4, characterized in that, It also includes a cover opening component (5), which is disposed on the feeding hopper (1) and is used to drive the cover plate (4) to open the collection box (3).

6. The feeding device for a blow molding machine according to claim 5, characterized in that, The cover opening component (5) is a spring sheet. One end of the spring sheet is fixed on the inner wall of the through groove (14), and the other end abuts against the cover plate (4). The feeding insert plate (2) can be inserted into the through groove (14) and push the spring sheet to undergo elastic deformation.

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